The correct statements among the following regarding any unimolecular reaction are-
| (a) | Only one reacting species is involved in the rate-determining step |
| (b) | The order and the molecularity of the slowest step are equal to one |
| (c) | The molecularity of the reaction is one and the order is zero |
| (d) | Both molecularity and order of the reaction are one |
| 1. | (a, b) | 2. | (b, c) |
| 3. | (c, d) | 4. | (a, d) |
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